Leicester led in the first half thanks to a Hector Bellerin own goal but the defender set up Ozil for Arsenal's excellent equaliser shortly before half-time at the Emirates Stadium on Monday.
And Ozil drove through the gears after the interval, his sublime play creating two goals for substitute Pierre-Emerick Aubameyang in the space of just three minutes.
Arsenal made a nervy start and the hosts should have conceded a penalty when Rob Holding handed the ball in the box.
Bernd Leno had to make a smart stop low to his left to save Harry Maguire's header from a James Maddison free-kick, but the goalkeeper was beaten in the 31st minute.
Ben Chilwell got round the back of Bellerin and the new England international's low cross was deflected in off the Arsenal full-back, leaving Leno wrongfooted.
Bellerin made amends before the break, though, collecting a pass from Ozil and delivering a low cross that the Arsenal captain placed past Kasper Schmeichel with a sublime first-time shot.
Leicester went close to retaking the lead but Wilfred Ndidi's header rattled the woodwork and substitute Aubameyang then scored within two minutes of his introduction.
Ozil was at the heart of it, splitting the Leicester defence with a pass for Bellerin to square a low cross that Aubameyang could not miss, with the Gabon international immediately celebrating his second.
Again it was Ozil conducting Arsenal's orchestra, flicking the ball past Schmeichel for Aubameyang to complete a sensational move that saw the former Germany international sell the Leicester defence an outrageous dummy before drifting on to Alexandre Lacazette's pass.
Such was Arsenal's comfort in the closing stages, Ozil could be withdrawn by Emery for a fully deserved standing ovation to recognise his match-winning performance.
Ozil leads from the front
It has been a strange year for Ozil, who quit international duty in acrimonious circumstances following Germany's shocking World Cup campaign before being made one of five Arsenal captains by Emery. That decision raised eyebrows, but Ozil was a thrilling presence throughout, creating Aubameyang's goals and capping a star performance with a glorious one of his own that makes him the most prolific German player in Premier League history.
